94 Accord Wagon: Auto trans shifter stuck
 

I can no longer shift the automatic transmission on my 94 Accord Wagon into park or reverse. Neutral and the lower shift points still shift normally, but the shifter seems to hit a hard stop when I try to get to park or reverse. I can still drive forward without trouble,but if I park anywhere that requires me to back-up when leaving, things get problematic. Advice needed. What could the trouble be?

Do your brake lights work when you push the brake pedal?